1997

A note on bi and quasi-ideals of semigroups, ordered semigroups

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Year: 
N. Kehayopulu, S. Lajos, G. Lepouras
PU.M.A. Vol. 8 (1997), No. 1, pp 75-81.

On right regular and right duo ordered semigroups

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Year: 
Niovi Kehayopulu, George Lepouras and Michael Tsingelis
Math. Japonica 46, No. 2 (1997), 311-315. Îœathematical Reviews: 06019 (Alexey Vernitskii). Zentralblatt fur Math 890.06009 (H. Mitsch).

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